<!DOCTYPE html>
<html lang="en-US">
  <head>
    <meta charset="utf-8">
    <meta name="viewport" content="width=device-width,initial-scale=1">
    <title>面试官：Vue常用的修饰符有哪些有什么应用场景 | 前端档案</title>
    <meta name="generator" content="VuePress 1.8.2">
    <link rel="icon" href="/favicon.ico">
    <meta name="description" content="前端通关宝典">
    <meta name="theme-color" content="#3eaf7c">
    <meta name="apple-mobile-web-app-capable" content="yes">
    <meta name="apple-mobile-web-app-status-bar-style" content="black">
    
    <link rel="preload" href="/assets/css/0.styles.e02fc531.css" as="style"><link rel="preload" href="/assets/js/app.bf44e39b.js" as="script"><link rel="preload" href="/assets/js/2.db7a59af.js" as="script"><link rel="preload" href="/assets/js/225.cfe12606.js" as="script"><link rel="prefetch" href="/assets/js/10.3bbe2f24.js"><link rel="prefetch" href="/assets/js/100.43061c81.js"><link rel="prefetch" href="/assets/js/101.2e8a188c.js"><link rel="prefetch" href="/assets/js/102.3f4f14f0.js"><link rel="prefetch" href="/assets/js/103.5ed45f48.js"><link rel="prefetch" href="/assets/js/104.29ef9283.js"><link rel="prefetch" href="/assets/js/105.e4051d70.js"><link rel="prefetch" href="/assets/js/106.ec073f00.js"><link rel="prefetch" href="/assets/js/107.9b165150.js"><link rel="prefetch" href="/assets/js/108.c0031864.js"><link rel="prefetch" href="/assets/js/109.06bb75a7.js"><link rel="prefetch" href="/assets/js/11.402e3434.js"><link rel="prefetch" href="/assets/js/110.edc92528.js"><link rel="prefetch" href="/assets/js/111.e50e0cca.js"><link rel="prefetch" href="/assets/js/112.b0decdf4.js"><link rel="prefetch" href="/assets/js/113.f0801886.js"><link rel="prefetch" href="/assets/js/114.25ab8fa4.js"><link rel="prefetch" href="/assets/js/115.36fc62f3.js"><link rel="prefetch" href="/assets/js/116.8df9a6aa.js"><link rel="prefetch" href="/assets/js/117.1ec0fada.js"><link rel="prefetch" href="/assets/js/118.51c54869.js"><link rel="prefetch" href="/assets/js/119.d708669d.js"><link rel="prefetch" href="/assets/js/12.eba9a66a.js"><link rel="prefetch" href="/assets/js/120.a44efeea.js"><link rel="prefetch" href="/assets/js/121.581a4ae4.js"><link rel="prefetch" href="/assets/js/122.e54e19e1.js"><link rel="prefetch" href="/assets/js/123.62aa41d0.js"><link rel="prefetch" href="/assets/js/124.c51c6b7f.js"><link rel="prefetch" href="/assets/js/125.68055811.js"><link rel="prefetch" href="/assets/js/126.8b16d246.js"><link rel="prefetch" href="/assets/js/127.fc7608d6.js"><link rel="prefetch" href="/assets/js/128.0df431fc.js"><link rel="prefetch" href="/assets/js/129.77241cfd.js"><link rel="prefetch" href="/assets/js/13.a3e65817.js"><link rel="prefetch" href="/assets/js/130.2bf0b622.js"><link rel="prefetch" href="/assets/js/131.77da1093.js"><link rel="prefetch" href="/assets/js/132.c1ac84bc.js"><link rel="prefetch" href="/assets/js/133.001af559.js"><link rel="prefetch" href="/assets/js/134.98ff69db.js"><link rel="prefetch" href="/assets/js/135.b91963f4.js"><link rel="prefetch" href="/assets/js/136.e3df531a.js"><link rel="prefetch" href="/assets/js/137.157c5a5f.js"><link rel="prefetch" href="/assets/js/138.1d3a1791.js"><link rel="prefetch" href="/assets/js/139.9e17df54.js"><link rel="prefetch" href="/assets/js/14.bd9cc5f8.js"><link rel="prefetch" href="/assets/js/140.22839840.js"><link rel="prefetch" href="/assets/js/141.dbde614d.js"><link rel="prefetch" href="/assets/js/142.5a6858ba.js"><link rel="prefetch" href="/assets/js/143.e26d707c.js"><link rel="prefetch" href="/assets/js/144.5b1fbe13.js"><link rel="prefetch" href="/assets/js/145.09921e20.js"><link rel="prefetch" href="/assets/js/146.8ea606b7.js"><link rel="prefetch" href="/assets/js/147.41bda9d5.js"><link rel="prefetch" href="/assets/js/148.d89f18bc.js"><link rel="prefetch" href="/assets/js/149.16aa39c9.js"><link rel="prefetch" href="/assets/js/15.deb2f25a.js"><link rel="prefetch" href="/assets/js/150.07798494.js"><link rel="prefetch" href="/assets/js/151.6732ee94.js"><link rel="prefetch" href="/assets/js/152.c644167e.js"><link rel="prefetch" href="/assets/js/153.040f256b.js"><link rel="prefetch" href="/assets/js/154.1cec3035.js"><link rel="prefetch" href="/assets/js/155.a4b51a17.js"><link rel="prefetch" href="/assets/js/156.095b78e0.js"><link rel="prefetch" href="/assets/js/157.eb262a26.js"><link rel="prefetch" href="/assets/js/158.35756e8c.js"><link rel="prefetch" href="/assets/js/159.6ac43664.js"><link rel="prefetch" href="/assets/js/16.c7b17381.js"><link rel="prefetch" href="/assets/js/160.0a56c40c.js"><link rel="prefetch" href="/assets/js/161.8320b48a.js"><link rel="prefetch" href="/assets/js/162.09ba1172.js"><link rel="prefetch" href="/assets/js/163.f7fb82e8.js"><link rel="prefetch" href="/assets/js/164.ab9df42b.js"><link rel="prefetch" href="/assets/js/165.f012858f.js"><link rel="prefetch" href="/assets/js/166.b3f190e3.js"><link rel="prefetch" href="/assets/js/167.43b66e59.js"><link rel="prefetch" href="/assets/js/168.4eb162d3.js"><link rel="prefetch" href="/assets/js/169.0375d2cf.js"><link rel="prefetch" href="/assets/js/17.da61c942.js"><link rel="prefetch" href="/assets/js/170.90c9c235.js"><link rel="prefetch" href="/assets/js/171.672fc257.js"><link rel="prefetch" href="/assets/js/172.dfa9d8d9.js"><link rel="prefetch" href="/assets/js/173.61a6ec8e.js"><link rel="prefetch" href="/assets/js/174.4f4ef0d7.js"><link rel="prefetch" href="/assets/js/175.675d01d1.js"><link rel="prefetch" href="/assets/js/176.5bd1bcb7.js"><link rel="prefetch" href="/assets/js/177.4355dadd.js"><link rel="prefetch" href="/assets/js/178.79ed29b8.js"><link rel="prefetch" href="/assets/js/179.2247dc30.js"><link rel="prefetch" href="/assets/js/18.6e554767.js"><link rel="prefetch" href="/assets/js/180.db79361a.js"><link rel="prefetch" href="/assets/js/181.85a33295.js"><link rel="prefetch" href="/assets/js/182.0bc317bc.js"><link rel="prefetch" href="/assets/js/183.7769a38e.js"><link rel="prefetch" href="/assets/js/184.9b0aba05.js"><link rel="prefetch" href="/assets/js/185.f6dc87bd.js"><link rel="prefetch" href="/assets/js/186.e3b7de00.js"><link rel="prefetch" href="/assets/js/187.a6dadcea.js"><link rel="prefetch" href="/assets/js/188.d3f8b0e3.js"><link rel="prefetch" href="/assets/js/189.1112499f.js"><link rel="prefetch" href="/assets/js/19.f800e0d1.js"><link rel="prefetch" href="/assets/js/190.e3255e84.js"><link rel="prefetch" href="/assets/js/191.34deece6.js"><link rel="prefetch" href="/assets/js/192.69821c0e.js"><link rel="prefetch" href="/assets/js/193.769a5088.js"><link rel="prefetch" href="/assets/js/194.afaa2cde.js"><link rel="prefetch" href="/assets/js/195.5b94bbc6.js"><link rel="prefetch" href="/assets/js/196.3b078264.js"><link rel="prefetch" href="/assets/js/197.2d9585d3.js"><link rel="prefetch" href="/assets/js/198.3095d8b8.js"><link rel="prefetch" href="/assets/js/199.79b6db11.js"><link rel="prefetch" href="/assets/js/20.4a74a968.js"><link rel="prefetch" href="/assets/js/200.c309ef7a.js"><link rel="prefetch" href="/assets/js/201.bded46e8.js"><link rel="prefetch" href="/assets/js/202.801fb3ea.js"><link rel="prefetch" href="/assets/js/203.b9933f5e.js"><link rel="prefetch" href="/assets/js/204.255b43df.js"><link rel="prefetch" href="/assets/js/205.000fb7ac.js"><link rel="prefetch" href="/assets/js/206.8f945829.js"><link rel="prefetch" href="/assets/js/207.74942b2e.js"><link rel="prefetch" href="/assets/js/208.329d8230.js"><link rel="prefetch" href="/assets/js/209.3fc54586.js"><link rel="prefetch" href="/assets/js/21.5f725cbd.js"><link rel="prefetch" href="/assets/js/210.1aa9659f.js"><link rel="prefetch" href="/assets/js/211.702df03f.js"><link rel="prefetch" href="/assets/js/212.ca95f208.js"><link rel="prefetch" href="/assets/js/213.024b4fa6.js"><link rel="prefetch" href="/assets/js/214.e2830dd8.js"><link rel="prefetch" href="/assets/js/215.0b646cb4.js"><link rel="prefetch" href="/assets/js/216.9bd6d019.js"><link rel="prefetch" href="/assets/js/217.586593b4.js"><link rel="prefetch" href="/assets/js/218.a2244829.js"><link rel="prefetch" href="/assets/js/219.1d858220.js"><link rel="prefetch" href="/assets/js/22.7d2b7a74.js"><link rel="prefetch" href="/assets/js/220.7f5e3dbd.js"><link rel="prefetch" href="/assets/js/221.d1f79d31.js"><link rel="prefetch" href="/assets/js/222.51d8a12c.js"><link rel="prefetch" href="/assets/js/223.797028ea.js"><link rel="prefetch" href="/assets/js/224.d925bf8b.js"><link rel="prefetch" href="/assets/js/226.b6bd41b4.js"><link rel="prefetch" href="/assets/js/227.15412d16.js"><link rel="prefetch" href="/assets/js/228.66af5157.js"><link rel="prefetch" href="/assets/js/229.cfb11559.js"><link rel="prefetch" href="/assets/js/23.1409c9f4.js"><link rel="prefetch" href="/assets/js/230.d2e613b5.js"><link rel="prefetch" href="/assets/js/231.85b8958b.js"><link rel="prefetch" href="/assets/js/232.42df48c8.js"><link rel="prefetch" href="/assets/js/233.d3be0c78.js"><link rel="prefetch" href="/assets/js/234.bb68d0be.js"><link rel="prefetch" href="/assets/js/235.bfd00052.js"><link rel="prefetch" href="/assets/js/236.3d58cc9d.js"><link rel="prefetch" href="/assets/js/237.d9af6062.js"><link rel="prefetch" href="/assets/js/238.54894974.js"><link rel="prefetch" href="/assets/js/239.b69669d0.js"><link rel="prefetch" href="/assets/js/24.e06b2b32.js"><link rel="prefetch" href="/assets/js/240.44f7b333.js"><link rel="prefetch" href="/assets/js/241.2d307b1a.js"><link rel="prefetch" href="/assets/js/242.47aecf42.js"><link rel="prefetch" href="/assets/js/243.b5afbb6e.js"><link rel="prefetch" href="/assets/js/244.8e04094f.js"><link rel="prefetch" href="/assets/js/245.78009475.js"><link rel="prefetch" href="/assets/js/246.eb7991c2.js"><link rel="prefetch" href="/assets/js/247.00c024fd.js"><link rel="prefetch" href="/assets/js/248.144c2842.js"><link rel="prefetch" href="/assets/js/249.35bae652.js"><link rel="prefetch" href="/assets/js/25.5e7aeaa8.js"><link rel="prefetch" href="/assets/js/250.854bde18.js"><link rel="prefetch" href="/assets/js/251.7cbb77f8.js"><link rel="prefetch" href="/assets/js/252.1ed96448.js"><link rel="prefetch" href="/assets/js/253.9d736b7d.js"><link rel="prefetch" href="/assets/js/254.137c6595.js"><link rel="prefetch" href="/assets/js/255.ac6865dc.js"><link rel="prefetch" href="/assets/js/256.055e06fd.js"><link rel="prefetch" href="/assets/js/257.63559614.js"><link rel="prefetch" href="/assets/js/258.b6958ba1.js"><link rel="prefetch" href="/assets/js/259.bc6da491.js"><link rel="prefetch" href="/assets/js/26.77d42111.js"><link rel="prefetch" href="/assets/js/260.a8e9559d.js"><link rel="prefetch" href="/assets/js/261.b051c6dd.js"><link rel="prefetch" href="/assets/js/262.e83c7ca8.js"><link rel="prefetch" href="/assets/js/263.bd14a165.js"><link rel="prefetch" href="/assets/js/264.65c3b624.js"><link rel="prefetch" href="/assets/js/265.db4371b9.js"><link rel="prefetch" href="/assets/js/266.97118d6c.js"><link rel="prefetch" href="/assets/js/267.de83cb0b.js"><link rel="prefetch" href="/assets/js/268.2bdd86cb.js"><link rel="prefetch" href="/assets/js/269.9c9a802f.js"><link rel="prefetch" href="/assets/js/27.fa37605f.js"><link rel="prefetch" href="/assets/js/270.f599f9fe.js"><link rel="prefetch" href="/assets/js/271.275d4619.js"><link rel="prefetch" href="/assets/js/272.ed0fabf6.js"><link rel="prefetch" href="/assets/js/273.fc279fbe.js"><link rel="prefetch" href="/assets/js/274.fe4b3d21.js"><link rel="prefetch" href="/assets/js/275.922677e1.js"><link rel="prefetch" href="/assets/js/276.597ceb81.js"><link rel="prefetch" href="/assets/js/277.71871d2e.js"><link rel="prefetch" href="/assets/js/278.10923657.js"><link rel="prefetch" href="/assets/js/279.cddbf2d7.js"><link rel="prefetch" href="/assets/js/28.7418a003.js"><link rel="prefetch" href="/assets/js/280.66542c64.js"><link rel="prefetch" href="/assets/js/281.c7ca5292.js"><link rel="prefetch" href="/assets/js/282.d105ef08.js"><link rel="prefetch" href="/assets/js/283.ae8d69c7.js"><link rel="prefetch" href="/assets/js/284.8763c337.js"><link rel="prefetch" href="/assets/js/285.cce4e007.js"><link rel="prefetch" href="/assets/js/29.42b5bf54.js"><link rel="prefetch" href="/assets/js/3.a2af090e.js"><link rel="prefetch" href="/assets/js/30.7fe0ece5.js"><link rel="prefetch" href="/assets/js/31.e05d012e.js"><link rel="prefetch" href="/assets/js/32.0a6466c6.js"><link rel="prefetch" href="/assets/js/33.8db270b1.js"><link rel="prefetch" href="/assets/js/34.c6e6ae70.js"><link rel="prefetch" href="/assets/js/35.8fc12d56.js"><link rel="prefetch" href="/assets/js/36.cb54baf3.js"><link rel="prefetch" href="/assets/js/37.656cb8eb.js"><link rel="prefetch" href="/assets/js/38.9152ff6b.js"><link rel="prefetch" href="/assets/js/39.f71e5e3d.js"><link rel="prefetch" href="/assets/js/4.02de3c47.js"><link rel="prefetch" href="/assets/js/40.3d664ab4.js"><link rel="prefetch" href="/assets/js/41.fc6e4f78.js"><link rel="prefetch" href="/assets/js/42.c17c3353.js"><link rel="prefetch" href="/assets/js/43.e78a329f.js"><link rel="prefetch" href="/assets/js/44.326a0948.js"><link rel="prefetch" href="/assets/js/45.67e6e1d4.js"><link rel="prefetch" href="/assets/js/46.85f71b1e.js"><link rel="prefetch" href="/assets/js/47.f2e524a6.js"><link rel="prefetch" href="/assets/js/48.843108ee.js"><link rel="prefetch" href="/assets/js/49.98713c95.js"><link rel="prefetch" href="/assets/js/5.f38c3daa.js"><link rel="prefetch" href="/assets/js/50.2c70898f.js"><link rel="prefetch" href="/assets/js/51.023fea5d.js"><link rel="prefetch" href="/assets/js/52.3877af4c.js"><link rel="prefetch" href="/assets/js/53.3938d117.js"><link rel="prefetch" href="/assets/js/54.4cf45721.js"><link rel="prefetch" href="/assets/js/55.6894de94.js"><link rel="prefetch" href="/assets/js/56.48fd0f63.js"><link rel="prefetch" href="/assets/js/57.2c3b8155.js"><link rel="prefetch" href="/assets/js/58.fee976b4.js"><link rel="prefetch" href="/assets/js/59.d57c3ac9.js"><link rel="prefetch" href="/assets/js/6.a7d50f34.js"><link rel="prefetch" href="/assets/js/60.9954df49.js"><link rel="prefetch" href="/assets/js/61.1b870f60.js"><link rel="prefetch" href="/assets/js/62.37537ac3.js"><link rel="prefetch" href="/assets/js/63.5e7cfac8.js"><link rel="prefetch" href="/assets/js/64.407003ca.js"><link rel="prefetch" href="/assets/js/65.ba6c5d7d.js"><link rel="prefetch" href="/assets/js/66.2b5a751b.js"><link rel="prefetch" href="/assets/js/67.2faf15d0.js"><link rel="prefetch" href="/assets/js/68.19e50dcb.js"><link rel="prefetch" href="/assets/js/69.eec003cb.js"><link rel="prefetch" href="/assets/js/7.6c196c91.js"><link rel="prefetch" href="/assets/js/70.98d2461a.js"><link rel="prefetch" href="/assets/js/71.184225a4.js"><link rel="prefetch" href="/assets/js/72.956d136a.js"><link rel="prefetch" href="/assets/js/73.3e68378e.js"><link rel="prefetch" href="/assets/js/74.cec669e7.js"><link rel="prefetch" href="/assets/js/75.d418b5f0.js"><link rel="prefetch" href="/assets/js/76.f3f9ccd6.js"><link rel="prefetch" href="/assets/js/77.f24df03b.js"><link rel="prefetch" href="/assets/js/78.7eee67a8.js"><link rel="prefetch" href="/assets/js/79.8fadb3f7.js"><link rel="prefetch" href="/assets/js/8.b7eb2fb2.js"><link rel="prefetch" href="/assets/js/80.4f6165b0.js"><link rel="prefetch" href="/assets/js/81.49b03807.js"><link rel="prefetch" href="/assets/js/82.7ea07224.js"><link rel="prefetch" href="/assets/js/83.d6bd71b7.js"><link rel="prefetch" href="/assets/js/84.26db1aa8.js"><link rel="prefetch" href="/assets/js/85.c8f1f3bb.js"><link rel="prefetch" href="/assets/js/86.fd1c3c7f.js"><link rel="prefetch" href="/assets/js/87.38ab6ed9.js"><link rel="prefetch" href="/assets/js/88.f0a874e0.js"><link rel="prefetch" href="/assets/js/89.2b3352d4.js"><link rel="prefetch" href="/assets/js/9.d7ae4925.js"><link rel="prefetch" href="/assets/js/90.286cc7d4.js"><link rel="prefetch" href="/assets/js/91.c17c366b.js"><link rel="prefetch" href="/assets/js/92.29bc2389.js"><link rel="prefetch" href="/assets/js/93.6d335097.js"><link rel="prefetch" href="/assets/js/94.89ab26c7.js"><link rel="prefetch" href="/assets/js/95.f2493183.js"><link rel="prefetch" href="/assets/js/96.6662ec36.js"><link rel="prefetch" href="/assets/js/97.22c9d3f9.js"><link rel="prefetch" href="/assets/js/98.0b0b77a2.js"><link rel="prefetch" href="/assets/js/99.df5f5981.js">
    <link rel="stylesheet" href="/assets/css/0.styles.e02fc531.css">
  </head>
  <body>
    <div id="app" data-server-rendered="true"><div class="theme-container"><header class="navbar"><div class="sidebar-button"><svg xmlns="http://www.w3.org/2000/svg" aria-hidden="true" role="img" viewBox="0 0 448 512" class="icon"><path fill="currentColor" d="M436 124H12c-6.627 0-12-5.373-12-12V80c0-6.627 5.373-12 12-12h424c6.627 0 12 5.373 12 12v32c0 6.627-5.373 12-12 12zm0 160H12c-6.627 0-12-5.373-12-12v-32c0-6.627 5.373-12 12-12h424c6.627 0 12 5.373 12 12v32c0 6.627-5.373 12-12 12zm0 160H12c-6.627 0-12-5.373-12-12v-32c0-6.627 5.373-12 12-12h424c6.627 0 12 5.373 12 12v32c0 6.627-5.373 12-12 12z"></path></svg></div> <a href="/" class="home-link router-link-active"><img src="/images/logo.png" alt="前端档案" class="logo"> <span class="site-name can-hide">前端档案</span></a> <div class="links"><div class="search-box"><input aria-label="Search" autocomplete="off" spellcheck="false" value=""> <!----></div> <nav class="nav-links can-hide"><div class="nav-item"><a href="/guide/" class="nav-link">
  指南
</a></div><div class="nav-item"><a href="/fe/" class="nav-link router-link-active">
  前端
</a></div><div class="nav-item"><a href="/be/" class="nav-link">
  后端
</a></div><div class="nav-item"><a href="/base/" class="nav-link">
  基础
</a></div><div class="nav-item"><a href="/tools/" class="nav-link">
  工具
</a></div><div class="nav-item"><a href="/resume/" class="nav-link">
  简历
</a></div><div class="nav-item"><a href="/experience/" class="nav-link">
  面经
</a></div><div class="nav-item"><a href="/technology/" class="nav-link">
  八股文
</a></div><div class="nav-item"><a href="/thinks/" class="nav-link">
  思考
</a></div> <!----></nav></div></header> <div class="sidebar-mask"></div> <aside class="sidebar"><nav class="nav-links"><div class="nav-item"><a href="/guide/" class="nav-link">
  指南
</a></div><div class="nav-item"><a href="/fe/" class="nav-link router-link-active">
  前端
</a></div><div class="nav-item"><a href="/be/" class="nav-link">
  后端
</a></div><div class="nav-item"><a href="/base/" class="nav-link">
  基础
</a></div><div class="nav-item"><a href="/tools/" class="nav-link">
  工具
</a></div><div class="nav-item"><a href="/resume/" class="nav-link">
  简历
</a></div><div class="nav-item"><a href="/experience/" class="nav-link">
  面经
</a></div><div class="nav-item"><a href="/technology/" class="nav-link">
  八股文
</a></div><div class="nav-item"><a href="/thinks/" class="nav-link">
  思考
</a></div> <!----></nav>  <ul class="sidebar-links"><li><a href="/fe/" aria-current="page" class="sidebar-link">大前端学习路径 + B站资源整合</a></li><li><section class="sidebar-group collapsable depth-0"><p class="sidebar-heading"><span>HTML</span> <span class="arrow right"></span></p> <!----></section></li><li><section class="sidebar-group collapsable depth-0"><p class="sidebar-heading"><span>CSS</span> <span class="arrow right"></span></p> <!----></section></li><li><section class="sidebar-group collapsable depth-0"><p class="sidebar-heading"><span>JavaScript</span> <span class="arrow right"></span></p> <!----></section></li><li><section class="sidebar-group collapsable depth-0"><p class="sidebar-heading"><span>TypeScript</span> <span class="arrow right"></span></p> <!----></section></li><li><section class="sidebar-group collapsable depth-0"><p class="sidebar-heading"><span>ES6</span> <span class="arrow right"></span></p> <!----></section></li><li><section class="sidebar-group collapsable depth-0"><p class="sidebar-heading open"><span>Vue</span> <span class="arrow down"></span></p> <ul class="sidebar-links sidebar-group-items"><li><a href="/fe/vue/" aria-current="page" class="sidebar-link">Vue的理解</a></li><li><a href="/fe/vue/mvvm.html" class="sidebar-link">MVVM 双向数据绑定</a></li><li><a href="/fe/vue/spa.html" class="sidebar-link">面试官：你对SPA单页面的理解，它的优缺点分别是什么？如何实现SPA应用呢</a></li><li><a href="/fe/vue/show_if.html" class="sidebar-link">v-show 和 v-if 有什么区别？</a></li><li><a href="/fe/vue/new_vue.html" class="sidebar-link">面试官：Vue实例挂载的过程</a></li><li><a href="/fe/vue/lifecycle.html" class="sidebar-link">面试官：请描述下你对vue生命周期的理解？在created和mounted这两个生命周期中请求数据有什么区别呢？</a></li><li><a href="/fe/vue/if_for.html" class="sidebar-link">面试官：v-if和v-for的优先级是什么？</a></li><li><a href="/fe/vue/computed_watch.html" class="sidebar-link">计算属性 VS 监听属性</a></li><li><a href="/fe/vue/first_page_time.html" class="sidebar-link">面试官：SPA首屏加载速度慢的怎么解决？</a></li><li><a href="/fe/vue/data.html" class="sidebar-link">面试官：为什么data属性是一个函数而不是一个对象？</a></li><li><a href="/fe/vue/data_object_add_attrs.html" class="sidebar-link">面试官：动态给vue的data添加一个新的属性时会发生什么？怎样解决？</a></li><li><a href="/fe/vue/components_plugin.html" class="sidebar-link">面试官：Vue中组件和插件有什么区别？</a></li><li><a href="/fe/vue/communication.html" class="sidebar-link">面试官：Vue组件之间的通信方式都有哪些？</a></li><li><a href="/fe/vue/nexttick.html" class="sidebar-link">面试官：Vue中的$nextTick有什么作用？</a></li><li><a href="/fe/vue/mixin.html" class="sidebar-link">Mixin 混入</a></li><li><a href="/fe/vue/slot.html" class="sidebar-link">面试官：说说你对slot的理解？slot使用场景有哪些？</a></li><li><a href="/fe/vue/observable.html" class="sidebar-link">面试官：Vue.observable你有了解过吗？说说看</a></li><li><a href="/fe/vue/key.html" class="sidebar-link">Key的理解</a></li><li><a href="/fe/vue/keepalive.html" class="sidebar-link">面试官：说说你对keep-alive的理解是什么？</a></li><li><a href="/fe/vue/modifier.html" aria-current="page" class="active sidebar-link">面试官：Vue常用的修饰符有哪些有什么应用场景</a><ul class="sidebar-sub-headers"><li class="sidebar-sub-header"><a href="/fe/vue/modifier.html#一、修饰符是什么" class="sidebar-link">一、修饰符是什么</a></li><li class="sidebar-sub-header"><a href="/fe/vue/modifier.html#二、修饰符的作用" class="sidebar-link">二、修饰符的作用</a></li><li class="sidebar-sub-header"><a href="/fe/vue/modifier.html#三、应用场景" class="sidebar-link">三、应用场景</a></li><li class="sidebar-sub-header"><a href="/fe/vue/modifier.html#参考文献" class="sidebar-link">参考文献</a></li></ul></li><li><a href="/fe/vue/directive.html" class="sidebar-link">面试官：你有写过自定义指令吗？自定义指令的应用场景有哪些？</a></li><li><a href="/fe/vue/filter.html" class="sidebar-link">面试官：Vue中的过滤器了解吗？过滤器的应用场景有哪些？</a></li><li><a href="/fe/vue/vnode.html" class="sidebar-link">虚拟DOM</a></li><li><a href="/fe/vue/diff.html" class="sidebar-link">Diff 算法</a></li><li><a href="/fe/vue/axios.html" class="sidebar-link">面试官：Vue项目中有封装过axios吗？主要是封装哪方面的？</a></li><li><a href="/fe/vue/axios_code.html" class="sidebar-link">面试官：你了解axios的原理吗？有看过它的源码吗？</a></li><li><a href="/fe/vue/ssr.html" class="sidebar-link">面试官：SSR解决了什么问题？有做过SSR吗？你是怎么做的？</a></li><li><a href="/fe/vue/structure.html" class="sidebar-link">面试官：说下你的vue项目的目录结构，如果是大型项目你该怎么划分结构和划分组件呢？</a></li><li><a href="/fe/vue/permission.html" class="sidebar-link">面试官：vue要做权限管理该怎么做？如果控制到按钮级别的权限怎么做？</a></li><li><a href="/fe/vue/cors.html" class="sidebar-link">面试官：Vue项目中你是如何解决跨域的呢？</a></li><li><a href="/fe/vue/404.html" class="sidebar-link">面试官：vue项目本地开发完成后部署到服务器后报404是什么原因呢？</a></li><li><a href="/fe/vue/error.html" class="sidebar-link">面试官：你是怎么处理vue项目中的错误的？</a></li><li><a href="/fe/vue/vue_router.html" class="sidebar-link">Vue Router</a></li><li><a href="/fe/vue/vue-debounce-throttle.html" class="sidebar-link">vue防抖调研</a></li></ul></section></li><li><section class="sidebar-group collapsable depth-0"><p class="sidebar-heading"><span>Vue3</span> <span class="arrow right"></span></p> <!----></section></li><li><section class="sidebar-group collapsable depth-0"><p class="sidebar-heading"><span>React</span> <span class="arrow right"></span></p> <!----></section></li><li><section class="sidebar-group collapsable depth-0"><p class="sidebar-heading"><span>Webpack</span> <span class="arrow right"></span></p> <!----></section></li><li><section class="sidebar-group collapsable depth-0"><p class="sidebar-heading"><span>Node.js</span> <span class="arrow right"></span></p> <!----></section></li><li><section class="sidebar-group collapsable depth-0"><p class="sidebar-heading"><span>性能优化</span> <span class="arrow right"></span></p> <!----></section></li><li><section class="sidebar-group collapsable depth-0"><p class="sidebar-heading"><span>手写代码</span> <span class="arrow right"></span></p> <!----></section></li></ul> </aside> <main class="page"> <div class="theme-default-content content__default"><h1 id="面试官-vue常用的修饰符有哪些有什么应用场景"><a href="#面试官-vue常用的修饰符有哪些有什么应用场景" class="header-anchor">#</a> 面试官：Vue常用的修饰符有哪些有什么应用场景</h1> <p><img src="https://static.vue-js.com/8f718e30-42c0-11eb-ab90-d9ae814b240d.png" alt=""></p> <h2 id="一、修饰符是什么"><a href="#一、修饰符是什么" class="header-anchor">#</a> 一、修饰符是什么</h2> <p>在程序世界里，修饰符是用于限定类型以及类型成员的声明的一种符号</p> <p>在<code>Vue</code>中，修饰符处理了许多<code>DOM</code>事件的细节，让我们不再需要花大量的时间去处理这些烦恼的事情，而能有更多的精力专注于程序的逻辑处理</p> <p><code>vue</code>中修饰符分为以下五种：</p> <ul><li>表单修饰符</li> <li>事件修饰符</li> <li>鼠标按键修饰符</li> <li>键值修饰符</li> <li>v-bind修饰符</li></ul> <h2 id="二、修饰符的作用"><a href="#二、修饰符的作用" class="header-anchor">#</a> 二、修饰符的作用</h2> <h3 id="表单修饰符"><a href="#表单修饰符" class="header-anchor">#</a> 表单修饰符</h3> <p>在我们填写表单的时候用得最多的是<code>input</code>标签，指令用得最多的是<code>v-model</code></p> <p>关于表单的修饰符有如下：</p> <ul><li>lazy</li> <li>trim</li> <li>number</li></ul> <h4 id="lazy"><a href="#lazy" class="header-anchor">#</a> lazy</h4> <p>在我们填完信息，光标离开标签的时候，才会将值赋予给<code>value</code>，也就是在<code>change</code>事件之后再进行信息同步</p> <div class="language-js extra-class"><pre class="language-js"><code><span class="token operator">&lt;</span>input type<span class="token operator">=</span><span class="token string">&quot;text&quot;</span> v<span class="token operator">-</span>model<span class="token punctuation">.</span>lazy<span class="token operator">=</span><span class="token string">&quot;value&quot;</span><span class="token operator">&gt;</span>
<span class="token operator">&lt;</span>p<span class="token operator">&gt;</span><span class="token punctuation">{</span><span class="token punctuation">{</span>value<span class="token punctuation">}</span><span class="token punctuation">}</span><span class="token operator">&lt;</span><span class="token operator">/</span>p<span class="token operator">&gt;</span>
</code></pre></div><h4 id="trim"><a href="#trim" class="header-anchor">#</a> trim</h4> <p>自动过滤用户输入的首空格字符，而中间的空格不会过滤</p> <div class="language-js extra-class"><pre class="language-js"><code><span class="token operator">&lt;</span>input type<span class="token operator">=</span><span class="token string">&quot;text&quot;</span> v<span class="token operator">-</span>model<span class="token punctuation">.</span>trim<span class="token operator">=</span><span class="token string">&quot;value&quot;</span><span class="token operator">&gt;</span>
</code></pre></div><h4 id="number"><a href="#number" class="header-anchor">#</a> number</h4> <p>自动将用户的输入值转为数值类型，但如果这个值无法被<code>parseFloat</code>解析，则会返回原来的值</p> <div class="language-js extra-class"><pre class="language-js"><code><span class="token operator">&lt;</span>input v<span class="token operator">-</span>model<span class="token punctuation">.</span>number<span class="token operator">=</span><span class="token string">&quot;age&quot;</span> type<span class="token operator">=</span><span class="token string">&quot;number&quot;</span><span class="token operator">&gt;</span>
</code></pre></div><h3 id="事件修饰符"><a href="#事件修饰符" class="header-anchor">#</a> 事件修饰符</h3> <p>事件修饰符是对事件捕获以及目标进行了处理，有如下修饰符：</p> <ul><li>stop</li> <li>prevent</li> <li>self</li> <li>once</li> <li>capture</li> <li>passive</li> <li>native</li></ul> <h4 id="stop"><a href="#stop" class="header-anchor">#</a> stop</h4> <p>阻止了事件冒泡，相当于调用了<code>event.stopPropagation</code>方法</p> <div class="language-js extra-class"><pre class="language-js"><code><span class="token operator">&lt;</span>div @click<span class="token operator">=</span><span class="token string">&quot;shout(2)&quot;</span><span class="token operator">&gt;</span>
  <span class="token operator">&lt;</span>button @click<span class="token punctuation">.</span>stop<span class="token operator">=</span><span class="token string">&quot;shout(1)&quot;</span><span class="token operator">&gt;</span>ok<span class="token operator">&lt;</span><span class="token operator">/</span>button<span class="token operator">&gt;</span>
<span class="token operator">&lt;</span><span class="token operator">/</span>div<span class="token operator">&gt;</span>
<span class="token comment">//只输出1</span>
</code></pre></div><h4 id="prevent"><a href="#prevent" class="header-anchor">#</a> prevent</h4> <p>阻止了事件的默认行为，相当于调用了<code>event.preventDefault</code>方法</p> <div class="language-js extra-class"><pre class="language-js"><code><span class="token operator">&lt;</span>form v<span class="token operator">-</span>on<span class="token operator">:</span>submit<span class="token punctuation">.</span>prevent<span class="token operator">=</span><span class="token string">&quot;onSubmit&quot;</span><span class="token operator">&gt;</span><span class="token operator">&lt;</span><span class="token operator">/</span>form<span class="token operator">&gt;</span>
</code></pre></div><h4 id="self"><a href="#self" class="header-anchor">#</a> self</h4> <p>只当在 <code>event.target</code> 是当前元素自身时触发处理函数</p> <div class="language-js extra-class"><pre class="language-js"><code><span class="token operator">&lt;</span>div v<span class="token operator">-</span>on<span class="token operator">:</span>click<span class="token punctuation">.</span>self<span class="token operator">=</span><span class="token string">&quot;doThat&quot;</span><span class="token operator">&gt;</span><span class="token operator">...</span><span class="token operator">&lt;</span><span class="token operator">/</span>div<span class="token operator">&gt;</span>
</code></pre></div><blockquote><p>使用修饰符时，顺序很重要；相应的代码会以同样的顺序产生。因此，用 <code>v-on:click.prevent.self</code> 会阻止<strong>所有的点击</strong>，而 <code>v-on:click.self.prevent</code> 只会阻止对元素自身的点击</p></blockquote> <h4 id="once"><a href="#once" class="header-anchor">#</a> once</h4> <p>绑定了事件以后只能触发一次，第二次就不会触发</p> <div class="language-js extra-class"><pre class="language-js"><code><span class="token operator">&lt;</span>button @click<span class="token punctuation">.</span>once<span class="token operator">=</span><span class="token string">&quot;shout(1)&quot;</span><span class="token operator">&gt;</span>ok<span class="token operator">&lt;</span><span class="token operator">/</span>button<span class="token operator">&gt;</span>
</code></pre></div><h4 id="capture"><a href="#capture" class="header-anchor">#</a> capture</h4> <p>使事件触发从包含这个元素的顶层开始往下触发</p> <div class="language-js extra-class"><pre class="language-js"><code><span class="token operator">&lt;</span>div @click<span class="token punctuation">.</span>capture<span class="token operator">=</span><span class="token string">&quot;shout(1)&quot;</span><span class="token operator">&gt;</span>
    obj1
<span class="token operator">&lt;</span>div @click<span class="token punctuation">.</span>capture<span class="token operator">=</span><span class="token string">&quot;shout(2)&quot;</span><span class="token operator">&gt;</span>
    obj2
<span class="token operator">&lt;</span>div @click<span class="token operator">=</span><span class="token string">&quot;shout(3)&quot;</span><span class="token operator">&gt;</span>
    obj3
<span class="token operator">&lt;</span>div @click<span class="token operator">=</span><span class="token string">&quot;shout(4)&quot;</span><span class="token operator">&gt;</span>
    obj4
<span class="token operator">&lt;</span><span class="token operator">/</span>div<span class="token operator">&gt;</span>
<span class="token operator">&lt;</span><span class="token operator">/</span>div<span class="token operator">&gt;</span>
<span class="token operator">&lt;</span><span class="token operator">/</span>div<span class="token operator">&gt;</span>
<span class="token operator">&lt;</span><span class="token operator">/</span>div<span class="token operator">&gt;</span>
<span class="token comment">// 输出结构: 1 2 4 3 </span>
</code></pre></div><h4 id="passive"><a href="#passive" class="header-anchor">#</a> passive</h4> <p>在移动端，当我们在监听元素滚动事件的时候，会一直触发<code>onscroll</code>事件会让我们的网页变卡，因此我们使用这个修饰符的时候，相当于给<code>onscroll</code>事件整了一个<code>.lazy</code>修饰符</p> <div class="language-js extra-class"><pre class="language-js"><code><span class="token operator">&lt;</span><span class="token operator">!</span><span class="token operator">--</span> <span class="token function">滚动事件的默认行为</span> <span class="token punctuation">(</span>即滚动行为<span class="token punctuation">)</span> 将会立即触发 <span class="token operator">--</span><span class="token operator">&gt;</span>
<span class="token operator">&lt;</span><span class="token operator">!</span><span class="token operator">--</span> 而不会等待 <span class="token template-string"><span class="token template-punctuation string">`</span><span class="token string">onScroll</span><span class="token template-punctuation string">`</span></span> 完成  <span class="token operator">--</span><span class="token operator">&gt;</span>
<span class="token operator">&lt;</span><span class="token operator">!</span><span class="token operator">--</span> 这其中包含 <span class="token template-string"><span class="token template-punctuation string">`</span><span class="token string">event.preventDefault()</span><span class="token template-punctuation string">`</span></span> 的情况 <span class="token operator">--</span><span class="token operator">&gt;</span>
<span class="token operator">&lt;</span>div v<span class="token operator">-</span>on<span class="token operator">:</span>scroll<span class="token punctuation">.</span>passive<span class="token operator">=</span><span class="token string">&quot;onScroll&quot;</span><span class="token operator">&gt;</span><span class="token operator">...</span><span class="token operator">&lt;</span><span class="token operator">/</span>div<span class="token operator">&gt;</span>
</code></pre></div><blockquote><p>不要把 <code>.passive</code> 和 <code>.prevent</code> 一起使用,因为 <code>.prevent</code> 将会被忽略，同时浏览器可能会向你展示一个警告。</p> <p><code>passive</code> 会告诉浏览器你不想阻止事件的默认行为</p></blockquote> <h4 id="native"><a href="#native" class="header-anchor">#</a> native</h4> <p>让组件变成像<code>html</code>内置标签那样监听根元素的原生事件，否则组件上使用 <code>v-on</code> 只会监听自定义事件</p> <div class="language-js extra-class"><pre class="language-js"><code><span class="token operator">&lt;</span>my<span class="token operator">-</span>component v<span class="token operator">-</span>on<span class="token operator">:</span>click<span class="token punctuation">.</span>native<span class="token operator">=</span><span class="token string">&quot;doSomething&quot;</span><span class="token operator">&gt;</span><span class="token operator">&lt;</span><span class="token operator">/</span>my<span class="token operator">-</span>component<span class="token operator">&gt;</span>
</code></pre></div><blockquote><p>使用.native修饰符来操作普通HTML标签是会令事件失效的</p></blockquote> <h3 id="鼠标按钮修饰符"><a href="#鼠标按钮修饰符" class="header-anchor">#</a> 鼠标按钮修饰符</h3> <p>鼠标按钮修饰符针对的就是左键、右键、中键点击，有如下：</p> <ul><li>left 左键点击</li> <li>right 右键点击</li> <li>middle 中键点击</li></ul> <div class="language-js extra-class"><pre class="language-js"><code><span class="token operator">&lt;</span>button @click<span class="token punctuation">.</span>left<span class="token operator">=</span><span class="token string">&quot;shout(1)&quot;</span><span class="token operator">&gt;</span>ok<span class="token operator">&lt;</span><span class="token operator">/</span>button<span class="token operator">&gt;</span>
<span class="token operator">&lt;</span>button @click<span class="token punctuation">.</span>right<span class="token operator">=</span><span class="token string">&quot;shout(1)&quot;</span><span class="token operator">&gt;</span>ok<span class="token operator">&lt;</span><span class="token operator">/</span>button<span class="token operator">&gt;</span>
<span class="token operator">&lt;</span>button @click<span class="token punctuation">.</span>middle<span class="token operator">=</span><span class="token string">&quot;shout(1)&quot;</span><span class="token operator">&gt;</span>ok<span class="token operator">&lt;</span><span class="token operator">/</span>button<span class="token operator">&gt;</span>
</code></pre></div><h3 id="键盘修饰符"><a href="#键盘修饰符" class="header-anchor">#</a> 键盘修饰符</h3> <p>键盘修饰符是用来修饰键盘事件（<code>onkeyup</code>，<code>onkeydown</code>）的，有如下：</p> <p><code>keyCode</code>存在很多，但<code>vue</code>为我们提供了别名，分为以下两种：</p> <ul><li>普通键（enter、tab、delete、space、esc、up...）</li> <li>系统修饰键（ctrl、alt、meta、shift...）</li></ul> <div class="language-js extra-class"><pre class="language-js"><code><span class="token comment">// 只有按键为keyCode的时候才触发</span>
<span class="token operator">&lt;</span>input type<span class="token operator">=</span><span class="token string">&quot;text&quot;</span> @keyup<span class="token punctuation">.</span>keyCode<span class="token operator">=</span><span class="token string">&quot;shout()&quot;</span><span class="token operator">&gt;</span>
</code></pre></div><p>还可以通过以下方式自定义一些全局的键盘码别名</p> <div class="language-js extra-class"><pre class="language-js"><code>Vue<span class="token punctuation">.</span>config<span class="token punctuation">.</span>keyCodes<span class="token punctuation">.</span>f2 <span class="token operator">=</span> <span class="token number">113</span>
</code></pre></div><h3 id="v-bind修饰符"><a href="#v-bind修饰符" class="header-anchor">#</a> v-bind修饰符</h3> <p>v-bind修饰符主要是为属性进行操作，用来分别有如下：</p> <ul><li>async</li> <li>prop</li> <li>camel</li></ul> <h4 id="async"><a href="#async" class="header-anchor">#</a> async</h4> <p>能对<code>props</code>进行一个双向绑定</p> <div class="language-js extra-class"><pre class="language-js"><code><span class="token comment">//父组件</span>
<span class="token operator">&lt;</span>comp <span class="token operator">:</span>myMessage<span class="token punctuation">.</span>sync<span class="token operator">=</span><span class="token string">&quot;bar&quot;</span><span class="token operator">&gt;</span><span class="token operator">&lt;</span><span class="token operator">/</span>comp<span class="token operator">&gt;</span> 
<span class="token comment">//子组件</span>
<span class="token keyword">this</span><span class="token punctuation">.</span><span class="token function">$emit</span><span class="token punctuation">(</span><span class="token string">'update:myMessage'</span><span class="token punctuation">,</span>params<span class="token punctuation">)</span><span class="token punctuation">;</span>
</code></pre></div><p>以上这种方法相当于以下的简写</p> <div class="language-js extra-class"><pre class="language-js"><code><span class="token comment">//父亲组件</span>
<span class="token operator">&lt;</span>comp <span class="token operator">:</span>myMessage<span class="token operator">=</span><span class="token string">&quot;bar&quot;</span> @update<span class="token operator">:</span>myMessage<span class="token operator">=</span><span class="token string">&quot;func&quot;</span><span class="token operator">&gt;</span><span class="token operator">&lt;</span><span class="token operator">/</span>comp<span class="token operator">&gt;</span>
<span class="token function">func</span><span class="token punctuation">(</span><span class="token parameter">e</span><span class="token punctuation">)</span><span class="token punctuation">{</span>
 <span class="token keyword">this</span><span class="token punctuation">.</span>bar <span class="token operator">=</span> e<span class="token punctuation">;</span>
<span class="token punctuation">}</span>
<span class="token comment">//子组件js</span>
<span class="token function">func2</span><span class="token punctuation">(</span><span class="token punctuation">)</span><span class="token punctuation">{</span>
  <span class="token keyword">this</span><span class="token punctuation">.</span><span class="token function">$emit</span><span class="token punctuation">(</span><span class="token string">'update:myMessage'</span><span class="token punctuation">,</span>params<span class="token punctuation">)</span><span class="token punctuation">;</span>
<span class="token punctuation">}</span>
</code></pre></div><p>使用<code>async</code>需要注意以下两点：</p> <ul><li><p>使用<code>sync</code>的时候，子组件传递的事件名格式必须为<code>update:value</code>，其中<code>value</code>必须与子组件中<code>props</code>中声明的名称完全一致</p></li> <li><p>注意带有 <code>.sync</code> 修饰符的 <code>v-bind</code> 不能和表达式一起使用</p></li> <li><p>将 <code>v-bind.sync</code> 用在一个字面量的对象上，例如 <code>v-bind.sync=”{ title: doc.title }”</code>，是无法正常工作的</p></li></ul> <h4 id="props"><a href="#props" class="header-anchor">#</a> props</h4> <p>设置自定义标签属性，避免暴露数据，防止污染HTML结构</p> <div class="language-js extra-class"><pre class="language-js"><code><span class="token operator">&lt;</span>input id<span class="token operator">=</span><span class="token string">&quot;uid&quot;</span> title<span class="token operator">=</span><span class="token string">&quot;title1&quot;</span> value<span class="token operator">=</span><span class="token string">&quot;1&quot;</span> <span class="token operator">:</span>index<span class="token punctuation">.</span>prop<span class="token operator">=</span><span class="token string">&quot;index&quot;</span><span class="token operator">&gt;</span>
</code></pre></div><h4 id="camel"><a href="#camel" class="header-anchor">#</a> camel</h4> <p>将命名变为驼峰命名法，如将<code>view-Box</code>属性名转换为 <code>viewBox</code></p> <div class="language-js extra-class"><pre class="language-js"><code><span class="token operator">&lt;</span>svg <span class="token operator">:</span>viewBox<span class="token operator">=</span><span class="token string">&quot;viewBox&quot;</span><span class="token operator">&gt;</span><span class="token operator">&lt;</span><span class="token operator">/</span>svg<span class="token operator">&gt;</span>
</code></pre></div><h2 id="三、应用场景"><a href="#三、应用场景" class="header-anchor">#</a> 三、应用场景</h2> <p>根据每一个修饰符的功能，我们可以得到以下修饰符的应用场景：</p> <ul><li>.stop：阻止事件冒泡</li> <li>.native：绑定原生事件</li> <li>.once：事件只执行一次</li> <li>.self ：将事件绑定在自身身上，相当于阻止事件冒泡</li> <li>.prevent：阻止默认事件</li> <li>.caption：用于事件捕获</li> <li>.once：只触发一次</li> <li>.keyCode：监听特定键盘按下</li> <li>.right：右键</li></ul> <h2 id="参考文献"><a href="#参考文献" class="header-anchor">#</a> 参考文献</h2> <ul><li>https://segmentfault.com/a/1190000016786254</li> <li>https://vue3js.cn/docs/zh</li></ul></div> <footer class="page-edit"><!----> <div class="last-updated"><span class="prefix">更新时间:</span> <span class="time">12/14/2021, 10:12:35 AM</span></div></footer> <div class="page-nav"><p class="inner"><span class="prev">
      ←
      <a href="/fe/vue/keepalive.html" class="prev">
        面试官：说说你对keep-alive的理解是什么？
      </a></span> <span class="next"><a href="/fe/vue/directive.html">
        面试官：你有写过自定义指令吗？自定义指令的应用场景有哪些？
      </a>
      →
    </span></p></div> </main></div><div class="global-ui"><!----></div></div>
    <script src="/assets/js/app.bf44e39b.js" defer></script><script src="/assets/js/2.db7a59af.js" defer></script><script src="/assets/js/225.cfe12606.js" defer></script>
  </body>
</html>
